The Arkansaw traveler., 1887-08-20
Compiled for The ArkdnsaW Trdpeler. SCIENTIFIC MISCELLANY.

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 The respectable sum of S9O,0OO A year is expended by the government of Cuba for chemical analyses in cases of suspected poisoning and all kinds of medico-legal investigations.
 A sanitary engineer suggests the importance of building on streets running northwest and southeast, or northeast and southwest. Sunshine ill all rooms at some time in the day can thus be insured, with great gain in healthfulness.
 A BIOLOGICAL CURIOSITY black and white cub have been born to a collar bear in the geological garden at Dresden, and are objects of unusual interest, from the fact that the albino is the first ever known among bears. Albinism is quite common among birds and rodents, and is sometimes met with among deer, foxes, wolves. etc, and even among snakes and fishes
 Though electrical storage batteries have attracted attention only within the past seven years, the discovery of the principle is as old as the century. Gausherot having first noticed in 1901 that platinum or silver wires gave off a current after being disconnected from voltaic battery with which they had been used for decomposing saline water. The first secondary cell of Plante was made in 1860.
 SCIENTIFIC PRIzEs.- The Prussian Society for the Promotion of Indus try has offered two prizes, the compe- tltion for one to close with 1887, and for the other with 1888. The first prize is about $750, for the most ex- haustive critical comparison of all kinds of existing bronze, tombac and brass alloys, used or recommended for machinery; the second is S1, ,25O for the best work on light and heat radi- ation of burning gases.
 STORMY SEAs.-The annual averaoe of dangerous storms in different seas and gulfs has been tabulated by MT. W. Doberck, of the Hong Kong ob- servatory, as follows: Arabian sea, 70; Bay of Bengal, 115; Southern Indian Ocean, 53; Java sea, 12: China sea, PA; Gulf of Mexico, 355. In the Antilles the maximum fre- quency is in August; in the China sea, December Java sea and Southern Indian ocean, February Bay of Ben gal, October; Arabian sea, June.
 MORE ABOUT SMoKING.-T The ob- servations of Dr. Frantzel, of Berlin. show that the effects of immoderate smoking are seldom manifested be- fore the smoker is thirty, but that the heart troubles most often begin be- teen the ages of fifty and sixty. Finer favored cigars bring about such troubles more frequently and more speedily than common ones. It may be regarded as certain that the injurious action of smoking does not depend upon the amount of nicotine, but upon some as yet unknown cause.
 How FATIGUE OPERArEs.-Aftera a study of some years, Prof. Mosso, of Turin, finds that when fatigue is car ried beyond the moderate stage, at which it is decidedly beneficial. it subjects the blood to decomposinp process through the infiltration into it of substances which act as poisons. and which, when injected into the cir culation of healthy animals, induce uneasiness and all the signs of excess i've exhaustion. When within the re- sisting power of the subject, fatigue has its pleasures and even joys, these being the expression of the organic consciousness that bodily loss of tissue is being balanced by reconstruction. Mosso's experiments were performed on Italian soldiers, and they proved. among the other results, that the stature and power of the modern war rior are fully equal to those of the ancient Roman.
 ENERGY's ETERNITY. - "Chemists," observes a late writer upon the cor relation of physical torces-a discoy- cry which has been pronounced the most important of the present cen- tury, "held that matter was indestruc- tible; this idea gradually extended to force, and, as no particle of matter could be lost, no portion of force ex- ist1ng in nature can disappear. Cor relation is word proposed by Mir. W. R. Grove in 1S42, and means mutually convertible.' He says: Light, heat, electricity, magnetism. motion, are all convertible material affections. Assuming either as the cause. one of the others will be the effect.' Let us take as an example motion and heat. Their relations were first established by MT. Joule in 1s49, and after seven years patient he found that the amount of mass motion in a body weighing one pound, which had fal- len TIP feet, was exactly equal to the molecular motion which must be